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AD8628AUJZ-REEL7 Datasheet(PDF) 1 Page - Analog Devices |
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AD8628AUJZ-REEL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier AD8628/AD8629/AD8630 Rev. F Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2002–2008 Analog Devices, Inc. All rights reserved. FEATURES Lowest auto-zero amplifier noise Low offset voltage: 1 μV Input offset drift: 0.002 μV/°C Rail-to-rail input and output swing 5 V single-supply operation High gain, CMRR, and PSRR: 120 dB Very low input bias current: 100 pA maximum Low supply current: 1.0 mA Overload recovery time: 10 μs No external components required APPLICATIONS Automotive sensors Pressure and position sensors Strain gage amplifiers Medical instrumentation Thermocouple amplifiers Precision current sensing Photodiode amplifier GENERAL DESCRIPTION This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply). The AD8628/AD8629/AD8630 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero- drift amplifiers combine low cost with high accuracy and low noise. No external capacitor is required. In addition, the AD8628/AD8629/AD8630 greatly reduce the digital switching noise found in most chopper-stabilized amplifiers. With an offset voltage of only 1 μV, drift of less than 0.005 μV/°C, and noise of only 0.5 μV p-p (0 Hz to 10 Hz), the AD8628/ AD8629/ AD8630 are suited for applications in which error sources cannot be tolerated. Position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating temperature range. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR. PIN CONFIGURATIONS OUT 1 V– 2 +IN 3 V+ 5 –IN 4 AD8628 TOP VIEW (Not to Scale) Figure 1. 5-Lead TSOT (UJ-5) and 5-Lead SOT-23 (RJ-5) NC 1 –IN 2 +IN 3 V– 4 NC 8 V+ 7 OUT 6 NC 5 NC = NO CONNECT AD8628 TOP VIEW (Not to Scale) Figure 2. 8-Lead SOIC_N (R-8) OUT A 1 –IN A 2 +IN A 3 V– 4 V+ 8 OUT B 7 –IN B 6 +IN B 5 AD8629 TOP VIEW (Not to Scale) Figure 3. 8-Lead SOIC_N (R-8) and 8-Lead MSOP (RM-8) 1 –IN A 2 +IN A 3 V+ 4 OUT D 14 –IN D 13 +IN D 12 V– 11 +IN B 5 +IN C 10 –IN B 6 –IN C 9 OUT B OUT A 7 OUT C 8 AD8630 TOP VIEW (Not to Scale) Figure 4. 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14) The AD8628/AD8629/AD8630 are specified for the extended industrial temperature range (−40°C to +125°C). The AD8628 is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead narrow SOIC plastic packages. The AD8629 is available in the standard 8-lead narrow SOIC and MSOP plastic packages. The AD8630 quad amplifier is available in 14-lead narrow SOIC and 14-lead TSSOP plastic packages. |
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